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CVE-2000-0556

17
FAUCET Score

CVE-2000-0556 describes a buffer overflow vulnerability in the web interface of Cmail version 2.4.7, developed by Computalynx. This flaw allows unauthenticated remote attackers to trigger a denial of service by submitting an excessively long username to the user dialog on port 8002. Rated with a CVSS score of 5.0 (Medium), the attack requires no authentication and has low complexity, but only impacts availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
2.4.7CPE matchmatch criteria
cpe:2.3:a:computalynx:cmail:2.4.7:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.88%
Probability of exploitation in next 30 days
EPSS Percentile
77.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0188 is in the 65th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

archives.neohapsis.com / archives/ntbugtraq/2000-q2/0248.html
PatchVendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/4625
computalynx.net / news/Jun2000/news0806200001.html
securityfocus.com / bid/1319
PatchVendor Advisory